¬Û¤ù

There existed at the XIXeme century a complicated classification of the clouds according to their appearance which made use of terms in Latin. This classification is used in modern meteorology, well there remain remainders about it. The modern nomenclature divides the clouds into two great types: convectifs and stratiform. Convectif rising: often vigorous and with abrupt release, produced clouds characterized by a high vertical extension, but a limited horizontal extension. These clouds are indicated génériquement by the cumulus term. Rising known as synoptic is the result of the processes of dynamics in stable atmosphere, in a laminated flow. This rising is gradual, producing cloud systems a uniform texture, being able to cover thousands of square kilometers. These clouds are indicated génériquement by the stratus term. It happens sometimes that this gradual rising destabilizes the atmospheric layer, giving place to clouds convectifs overlapping in the stratiform cloud.